December 1, 2020 (Tuesday)
Tu-A: Special Invited
Presider: Takanori Nomura (Wakayama University, Japan)
Tu-A-01
9:00

Special Invited
Development of remote sensing methods invegetation area
Kazuo Oki
Kyoto University of Advanced Science (Japan)
The use of remote sensing is useful to manage large
scale vegetation area. However, there arelimitations such as lack of the spatial resolution andhigh operative cost in remote sensing technologies
using satellite sensors and airborne platforms
respectively. Here, I introduce remote sensing
methods to solve these problems.

09:30 - 09:45

BreakTu-B: Sensing II
Presider: Takayuki Shima (AIST, Japan)
Tu-B-01
9:45

InvitedLaser Gas Sensing for Inspecting Cashmere
Place of Origin
Souichi Oka, Yuuichi Akage, Yurina Tanaka
NTT Device Innovation Center (Japan)
The aim of this study is to identify cashmere placeof origin using a laser of two micrometer
wavelength in order to measure the stable isotope
ratios of carbon and deuterium. Experimental
results showed that cashmere place of origin could
be identified with an accuracy of 90 percent.

Tu-B-02
10:10

Invited
Beans-size mid-infrared (LWIR:Infrared) hyperspectral camera

Longwave

Ichiro Ishimaru, Natsumi Kawashima
Kagawa University (Japan)
We proposed the point-one-shot mid-infrared
Fourier spectroscopic imager composed of only one
Ge lens (diameter: 6 mm, thickness: 5 mm) and a
two-dimensional array device. The lens is a nonspherical lens at the front side and a dual-axis
inclined wedge prism at the back side.

Tu-B-03
10:35

Localized Scattering Estimation In Turbid
Medium Using Backscattered Light From
Surface - For Noninvasive Sensing of Blood
Turbidity Shiyang Liang, Koichi Shimizu
Waseda University (Japan)
To realize a noninvasive turbidity measurement in
the blood vessel, a technique to estimate thereduced scattering coefficient from backscattered
NIR light was developed. Using a differential
principle, we can measure the scattering in thelocalized position in the medium. In the Monte
Carlo simulation, its validity was verified.

10:50 - 11:05

Break

Tu-C: Digital Holography III
Presider: Takanori Nomura (Wakayama University, Japan)
Tu-C-01
11:05

InvitedSpace-Bandwidth Product Extension with
Compressed Sensing for Off-Axis DigitalHolography
Shuhei Yoshida
Kindai University (Japan)
We propose a wavefront reconstruction methodwith a high SBP that can be applied to conventional
off-axis DH without any alteration. The proposed
method can reconstruct a high-SBP wavefront bysolving the hologram recording model via
compressed sensing (CS) with total variation (TV)regularization.

Tu-C-02
11:30

In-situ Calibration for a Spatial
Modulator Based On Digital Holography

LightRujia Li, Liangcai Cao
Tsinghua University (P.R.China)
We proposed an in-situ phase-SLM’s calibration
method based on digital holography. The
differential phase on hundreds of blocks that
include multiple pixels can be reconstructed
through the holograms. The spatial nonuniformityof the modulation on the panel can be measured forcalibration with high efficiency.

Tu-C-03
11:45

Detection of positional error due to hardening
process of UV curable adhesive by using digitalholography
Kakeru Inagaki1, Masayuki
Iwasaki2, Katuya Kito2

Yokota1, Katsuhiro

1Shimane

University (Japan),Company Limited (Japan)

2Kohoku

Kogyo

The temporal displacement of a mirror cube in theadhesion process of the UV adhesive is evaluatedby using digital holographic interferometry. Thismethod can detect three-dimensional displacementwith high sensitivity. In addition, the relationshipbetween the orientation of displacement and thedegree of hardening in adhesive is investigate.
12:00 - 12:05
12:05 - 13:00

ISOM'21 Announcement
Lunch

Tu-D1: Special Session 3D Imaging/Sensing, Display
Presider: Yusuke Nakamura (Hitachi, Ltd., Japan)
Tu-D1-01 Invited
13:00

Light ray direction identification imaging system
to obtain physical property of object
Hiroshi Ohno
Toshiba Corporation (Japan)
A direction of a light ray coming from an object isaffected by physical properties of the object such as
shape, surface roughness, and refractive index
distribution that cause reflection, scattering, andrefraction. Optical imaging system that can identify
light ray direction to obtain physical properties is
described here.

Tu-D1-02 Invited
13:25

Recent developments in our 3D displays - Nonoverlapped DFD display & Arc 3D display Shiro Suyama, Haruki Mizushina
Tokushima University (Japan)
We have proposed Non-overlapped DFD display
and Arc 3D display, which satisfy all the features
required for large & long-viewing distance 3Ddisplay. Our 3D displays have wide viewing zone inhorizontal and depth directions, large image depth
and simple structure. Moreover, we propose
rewriting method for Arc 3D display.

Tu-D1-03
13:50

Depth estimation in 2D transillumination image
using focus-stacking method
Sihan Xian, Yingdong Chen, Koichi Shimizu
Waseda University (Japan)
Transillumination imaging with near-infrared (NIR)
light is a useful noninvasive technique to visualize
the blood vessel network of a living animal.
However, the depth of the internal structure cannot
be known from the two dimensional image. To
solve this problem, we applied a technique offocus-stacking.

Tu-D1-04
14:05

Simulator for System Verification of 3D ShapeMeasurement
UsingFringeProjection
Profilometry Based on Game Engine
Kazumasa Ueda, Kanami Ikeda, Osanori Koyama,
Makoto Yamada
Osaka Prefecture University (Japan)
A Game-engine-based simulator for verifying a 3D
shape measurement system using fringe projection
profilometry is proposed. The simulator can importobjects and measurement device modules in avirtual 3D space via GUI. A measurement
simulation of the shape of a 3D CAD object isshown.

14:20 - 14:30

Break

Tu-D2: Special Session 3D Imaging/Sensing, Display
Presider: Koichi Iiyama (Kanazawa University, Japan)
Tu-D2-01 Invited
14:30

Improvement of Binocular Depth Perception in
3D Displays by Motion Parallax
Haruki Mizushina, Yoko Awata, Yusuke Fukuta,
Shiro Suyama
Tokushima University (Japan)
We introduce our recent studies related toimproving binocular depth perception in 3D
displays by motion parallax. Motion parallax canresolve various perceptual problem in conventional
stereoscopic display including depth degradation
with unbalance in visual acuity between left andright eyes, and depth degradation in 3D display
with vertical disparity.

Tu-D2-02 Invited
14:55

Human-Friendly Communication Media and Its
Applications
Hideaki Takada
Nagasaki University (Japan)
Tele-communication service has been progressing
from telephone to high-reality communication
systems that are based on evolution of network andaudio-visual media. Using 3D display and 3D
sound effects, we will realize the ultimate
communication that goes beyond reality andnaturally connects people by the expressing
intention, mind and sympathetic response.

Tu-D2-03
15:20Line symmetric image input technique ofvolumetric hologram waveguide for wide field ofview head mounted displays
Toshiteru Nakamura, Ryushi Fujimura
Utsunomiya University (Japan)
We propose a FOV enlargement method by using aline symmetric image input in the single layer
volumetric holographic waveguide. The proposed
method achieves 500 times improvement inuniformity of luminance and twice FOV as large as
conventional surface relief grating waveguide.

Tu-D2-04
15:35

Scanning Fiber Based Ultra-compact Near-eye
Display with a Narrow Beam Waveguiding
Technique
Takuma Kuno, Toshiteru Nakamura, Takahiro
Matsuda, Shinsuke Onoe, Yoshiho Seo, Satoshi
Ouchi
Hitachi, Ltd. (Japan)
We developed a new waveguide configuration thatenables achieving a uniform image with a fiber
scanning projector. We found that a uniform image
could be achieved using our prototype anddemonstrated that our proposed optical systemenables designing ultra-compact near-eye displays.

15:50 - 16:05

BreakTu-E: Advanced Optics and Device II
Presider: Kimihiro Saito (Kindai University TechnicalCollege, Japan)
Tu-E-01
16:05
Narrowband Focusing Mirror Based on Cavityresonator-integrated Guided-mode Resonance
FilterRyohei Ueda1, Toshiki Kusuura1, Junichi Inoue1,Kenji Kintaka2, Shogo Ura1
1KIT (Japan), 2NAIST (Japan)

A mirror constructed by a focusing grating coupler
in a waveguide resonator on a reflective substrate is
proposed for retroreflection of a diverging wave. A
21-μm-aperture mirror is fabricated for operationof a 1540-nm wavelength and a 10.6° divergenceangle. A 4-nm-width spectrum with the 80%
maximum is experimentally confirmed.
Tu-E-02 Invited
16:20

On the Problem of Total Internal Reflection
from a Semi-infinite Gain Medium
Masud Mansuripur1, Per K. Jakobsen2
1University of Arizona (U.S.A.), 2UIT The Arctic

University of Norway (Norway)
The problem of Fresnel reflection from the flat
interface between a transparent dielectric and asemi-infinite gain medium will be discussed.
Special attention will be paid to the case where theincidence angle exceeds the critical angle for totalinternal reflection.
Tu-E-03
16:45

Numerical simulation of switching of signal pathof FM-MCFs by SLM
Yuta Abe1, Atushi Okamoto1, Kazuhisa Ogawa1,Akihisa Tomita1, Daiki Soma2, Yuta Wakayama2,Takehiro Tsuritani2
1Hokkaido

University (Japan), 2KDDI Research,Inc. (Japan)
We conducted a numerical analysis to evaluate thecoupling efficiency of the signals path-switchedusing the spatial light modulator (SLM) in the few
mode multi core fiber (FM-MCF). Simulation
results showed that the spatial mode distributions
through the 6-mode 19-core fiber were retained
after switching by SLM.

Tu-E-04
17:00

Cross-talk reduction between layers based on
Gaussian distribution in optical tomographic
imaging using virtual phase conjugation
Jiang Mengying, Atsushi Okamoto, Kazuhisa
Ogawa, Akihisa Tomita
Hokkaido University (Japan)
To achieve a higher resolution performance invirtual phase conjugation-optical tomography, we
proposed an algorithm based on assuming the zaxle pixel intensity flows Gaussian distribution andcarried out it in simulation. The result shows thecross-talk between two layers was suppressed,
which indicates the system resolution wasimproved.

17:15 - 17:30

Break

Tu-F: Biological and Life Application I
Presider: Minoru Takeda (Kyoto Institute of Technology,Japan)
Tu-F-01
17:30

InvitedExtremely Weak Lighting that Brings Out thePotential of Plant
Yuta Kimura, Kohei Miwa, Koji Tanigawa,Atsushi Maeda, Kazunori Matsuda, Hiroshi
Kajiyama
Tokushima Bunri University (Japan)
Light is an essential element in growing plants. This
paper demonstrates that the extremely weak pulsed
lighting doubles photosynthetic products andcontrols the distribution of them into biomass andsecondary metabolite pathways. The property ofpulsed light and the growth promotion effect arepresented.

Tu-F-02
17:55

Extended depth of light-field microscopy
Ryo Shinke, Xiangyu Quan, Sudheesh K. Rajput,Osamu Matoba
Kobe University (Japan)
Extended depth of light-field microscopy ispresented. We introduce an electrically focus
tunable lens in a light-field microscope with alenslet array for extending the depth of field in thereconstruction calculation.

Tu-F-03
18:10

Noise Analysis for Sitting person using Electrooptical Tool in Intra-body Communication
Haruomi Hanazawa1, Koki Yoshioka1, Mitsuru
Shinagawa1, Naohiro Itoh2, Kohji Kawahata2,Nobunari Tsukamoto2, Syuji Kubota2, Masaaki
Tsuji2
1HoseiUniversity (Japan),

2RICOHCo., LTD.

(Japan)Intra-body communication uses human body as atransmission path for electric signals. Noise withthe sitting person is measured using an electrooptical tool. We verified that the difference between
the standing and sitting models is merely adifference in the capacitance values between thehuman body and the floor.
Tu-F-04
18:25

Improvement of Holographic Multi-spot PatternwithFeedback
Optimizationfor
Cell
Manipulation
Ryo Ihara1, Xiangyu Quan1, Yasuhiro Awatsuji2,Osamu Matoba1
1Kobe

University (Japan),Technology (Japan)

2KyotoInstitute ofQuality of holographic multi-spot pattern isimproved by feedback optimization using directobservation. In the biological applications, thenumber of multi-spots with the same intensity will
be controlled, and small intensity deviation andthree-dimensional property are required. We present
the preliminary experimental results.